Highlight the message ... do not open
Click File / Print (do not use the Quick Print button)
To print attachment:
Go to the bottom of the left-hand side
Click Print attached files check box

Print
The message will print on one page; the attachment will print on a
separate page
The next time you print a message and attachment, you can use the Quick Print
button as the customization option is already in memory

Method Two: Print attachment only in full view

If your e-mail message is open
Right click over the attachment icon
Select Print